Question

Which of the following is a form of DoS attack?

(a) Vulnerability attack

(b) Bandwidth flooding

(c) Connection flooding

(d) All of the mentioned

The question was posed to me in semester exam.

Question is taken from Network  Attacks in chapter Security & Physical Layer of Computer Network

Answer 1

The correct option is (d) All of the mentioned

Easiest explanation: In a DoS attack, the attacker won’t let the victims access the network by using a certain method that ensures that an essential network resource is unavailable to the victim. In vulnerability attack, the attacker exploits any obvious vulnerable entity in the network to deny the victim access into the network. In bandwidth flooding, the attacker floods the victim with a huge flow of packets and uses up all the bandwidth. In connection flooding, the attacker floods the victim network with a huge number of connections, so that, no other machine can connect to it.